Downlink Control Information (dci) Size Handling

1. A network node configured to communicate with a wireless device (WD) according to the Third Generation Partnership Project (3GPP) New Radio (NR), the network node comprising processing circuitry configured to: determine whether the WD is configured to monitor a downlink control information (DCI) format 0_2 or 1_2 for ultra-reliable low latency communications (URLLC); and when the WD is configured to monitor a DCI format 0_2 or 1_2 for URLLC, then perform a DCI size alignment procedure to adjust a size of URLLC DCI format 0_2 or 1_2 in a WD-specific search space, wherein the size of URLLC DCI format 0 2 or 1 2 in the WD-specific search space after being aligned does not equal the size of DCI format 01 or 1_1 in another WD-specific search space.

2. The network node of claim 1, wherein the DCI size alignment procedure includes padding a shorter DCI format with zeros until the size of the shorter DCI format is equal to a size of a longer DCI format.

3. The network node of claim 1, wherein the DCI alignment procedure ensures that a size of downlink URLLC DCI format 1_2 is not equal to a size of fallback DCI format 1_0.

4. The network node of claim 1, wherein the DCI alignment procedure ensures that a size of uplink URLLC DCI format 0_2 is not equal to a size of DCI format 0_0.

5. The network node of claim 1, wherein, when the limit a limit of a total number of DCI sizes that the WD is configured to monitor is 5, the size of the URLLC DCI format 0_2 or 1_2 in a WD-specific search space is not allowed to equal the size of the fallback DCI format 0_0 or 1_0 in another WD-specific search space and the size of the URLLC DCI 0_2 or 1_2 format in the WD-specific search space is not allowed to equal the size of the non-fallback DCI format 0_1 or 1_1 in another WD-specific search space.

6. The network node of claim 1, wherein a size of URLLC DCI format 0_2 and a size of a URLLC DCI format 1_2 in a WD-specific search space are aligned.

7. The network node of claim 6, wherein, when a number of information bits in the DCI format 0_2 is less than a payload size of the DCI format 1_2 monitored in the WD-specific search space for scheduling a same serving cell, the processing circuitry is further configured to append zeros to the URLLC DCI format 0_2 until a payload size of the DCI format 0_2 equals the payload size of the URLLC DCI format 1_2.

8. The network node of claim 6, wherein, when a number of information bits in the URLLC DCI format 1_2 is less than a payload size of the URLLC DCI format 0_2 monitored in the WD-specific search space for scheduling a same serving cell, the processing circuitry is further configured to append zeros to the URLLC DCI format 1_2 until a payload size of the URLLC DCI format 1_2 equals the payload size of the URLLC DCI format 0_2.

9. A method implemented in a network node configured to communicate with a wireless device (WD) according to the Third Generation Partnership Project (3GPP) New Radio (NR), the method comprising: determining whether the WD is configured to monitor a downlink control information (DCI) format 0_2 or 1_2 for ultra-reliable low latency communications (URLLC); and when the WD is configured to monitor a DCI format 0_2 or 1_2 for URLLC, then performing a DCI size alignment procedure to adjust a size of URLLC DCI format 0_2 or 1_2 in a WD-specific search space, wherein the size of URLLC DCI format 0_2 or 1_2 in the WD-specific search space after being aligned that does not equal the size of DCI format 0_1 or 1_1 in another WD-specific search space.

10. The method of claim 9, wherein the DCI size alignment procedure includes padding a shorter DCI format with zeros until the size of the shorter DCI format is equal to a size of a longer DCI format.

11. The method of claim 9, wherein the DCI alignment procedure ensures that a size of downlink URLLC DCI format 1_2 is not equal to a size of the fallback DCI format 1_0.

12. The method of claim 9, wherein the DCI alignment procedure ensures that a size of uplink URLLC DCI format 0_2 is not equal to a size of the fallback DCI format 0_0.

13. The method of claim 9, wherein, when a limit of a total number of DCI sizes that the WD is configured to monitor is 5, the size of a URLLC DCI 0_2 or 1_2 format in a WD-specific search space is not allowed to equal a size of the fallback DCI format 0_0 or 1_0 in another WD-specific search space and the size of the URLLC DCI format 0_2 or 1_2 in the WD-specific search space is not allowed to equal a size of the non-fallback DCI format 0_1 or 1_1 in another WD-specific search space.

14. The method of claim 9, wherein a size of URLLC DCI format 0_2 and a size of a DCI format 1_2 in a WD-specific search space are aligned.

15. The method of claim 14, wherein, when a number of information bits in the URLLC DCI format 0_2 is less than a payload size of the URLLC DCI format 1_2 monitored in the WD-specific search space for scheduling a same serving cell, zeros are appended to the URLLC DCI format 0_2 until a payload size of the URLLC DCI format 0_2 equals the payload size of the URLLC DCI format 1_2.

16. The method of claim 14, wherein, when a number of information bits in the URLLC DCI format 1_2 is less than a payload size of the URLLC DCI format 0_2 monitored in the WD-specific search space for scheduling a same serving cell, zeros are appended to the URLLC DCI format 1_2 until a payload size of the URLLC DCI format 1_2 equals the payload size of the URLLC DCI format 0_2.

17. A wireless device (WD) configured to communicate with a network node, according to the Third Generation Partnership Project (3GPP) New Radio (NR), the WD comprising processing circuitry configured to: monitor a cell for a downlink control information (DCI) message in an ultra-reliable low latency communications (URLLC) DCI format 0_2 or 1_2; and perform a DCI size alignment procedure to adjust a size of URLLC DCI format 0_2 or 1_2 in a WD-specific search space, wherein the size of URLLC DCI format 0_2 or 1_2 in the WD-specific search space after being aligned that does not equal the size of DCI format 0_1 or 1_1 in another WD-specific search space; and decode the DCI message according to the DCI size alignment procedure.

18. The WD of claim 17, wherein the DCI size alignment procedure includes excluding or dropping at least one of the URLLC DCI 0_2 or 1_2 format and a non-fallback DCI format from the DCI formats that the WD monitors via radio resource control (RRC) signaling.

19. The WD of claim 17, wherein the DCI size alignment procedure includes excluding or dropping at least one of the URLLC DCI format 0_2 or 1_2 and a non-fallback DCI format 0_1 or 1_1 from the DCI formats that the WD monitors based at least in part on a priority rule.

20. A method in a wireless device (WD) configured to communicate with a network node according to the Third Generation Partnership Project (3GPP) New Radio (NR), the method comprising: monitoring a cell for a downlink control information (DCI) message in an ultra-reliable low latency communications (URLLC) DCI 0_2 or 1_2 format; and performing a DCI size alignment procedure to adjust a size of URLLC DCI format 0_2 or 1_2 in a WD-specific search space, wherein the size of URLLC DCI format 0_2 or 1_2 in the WD-specific search space after being aligned does not equal the size of DCI format 0_1 or 1_1 in another WD-specific search space; and decoding the DCI message according to the DCI size alignment.

21. The method of claim 20, wherein the DCI size alignment procedure includes excluding or dropping at least one of a URLLC DCI format 0_2 or 1_2 and a non-fallback DCI format 0_1 or 1_1 from the DCI formats that the WD monitors via radio resource control (RRC) signaling.

22. The method of claim 20, wherein the DCI size alignment procedure includes excluding or dropping at least one of a URLLC DCI format 0_2 or 1_2 and a non-fallback DCI format 0_1 or 1_1 from the DCI formats that the WD monitors based at least in part on a priority rule.